11201010201988 has 24 divisors (see below), whose sum is σ = 19687916502072. Its totient is φ = 5575913078784.

The previous prime is 11201010201947. The next prime is 11201010202013. The reversal of 11201010201988 is 88910201010211.

It can be written as a sum of positive squares in 4 ways, for example, as 9677089083204 + 1523921118784 = 3110802^2 + 1234472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684745 + ... + 4782352.

It is an arithmetic number, because the mean of its divisors is an integer number (820329854253).

Almost surely, 2^{11201010201988} is an apocalyptic number.

It is an amenable number.

11201010201988 is a deficient number, since it is larger than the sum of its proper divisors (8486906300084).

11201010201988 is a wasteful number, since it uses less digits than its factorization.

11201010201988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469351 (or 5469349 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 34.

The spelling of 11201010201988 in words is "eleven trillion, two hundred one billion, ten million, two hundred one thousand, nine hundred eighty-eight".